80751680

素因数分解:

$2^6\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1987}}^1$

素因数の和:2131

約数の個数: 56

約数和(自身を含む): 193901568

約数和(自身を除く): 113149888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 160, 254, 320, 508, 635, 1016, 1270, 1987, 2032, 2540, 3974, 4064, 5080, 7948, 8128, 9935, 10160, 15896, 19870, 20320, 31792, 39740, 40640, 63584, 79480, 127168, 158960, 252349, 317920, 504698, 635840, 1009396, 1261745, 2018792, 2523490, 4037584, 5046980, 8075168, 10093960, 16150336, 20187920, 40375840, 80751680]

約数ペア:

[(1, 80751680), (2, 40375840), (4, 20187920), (5, 16150336), (8, 10093960), (10, 8075168), (16, 5046980), (20, 4037584), (32, 2523490), (40, 2018792), (64, 1261745), (80, 1009396), (127, 635840), (160, 504698), (254, 317920), (320, 252349), (508, 158960), (635, 127168), (1016, 79480), (1270, 63584), (1987, 40640), (2032, 39740), (2540, 31792), (3974, 20320), (4064, 19870), (5080, 15896), (7948, 10160), (8128, 9935)]